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What is CPUID (CPU identification)?
What is a CPUID & how does it work?
How do I find the CPUID for my Intel® processor?
How to use CPUID in C & C++?
In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from CPU Identification) allowing software to discover details of the processor. It was introduced by Intel in 1993 with the launch of the Pentium and SL-enhanced 486 processors. [1]
- Calling Cpuid in C and C++
- Highest Input in Cpuid
- Platform Specific Code
- What Information Does Cpuid Give?
CPUID can be used in C and C++ as well. Compilers like GCC have a header file cpuid.h which has an utility function __get_cpuid_countto call CPUID instruction for a given input. The functions __get_cpuid_count and __cpuid_countare defined as follows in the header files: There are two main functions: 1. __get_cpuid_count: takes two inputs that is le...
To get the value of the highest value into CPUID basic instructions, we need to pass 0 in EAX to CPUID instruction. The output in EAX is the value of the highest value into CPUID. To get the value of the highest value into CPUID extended instructions, we need to pass 80000000h in EAX to CPUID instruction. The output in EAX is the value of the highe...
Code dealing with CPUID can be platform specific code that is it will be working as expected in one platform while it is not working on another platform. This is because the leaf value for a specific information vary across platforms. Example: To get cache topology, following is the leaf value for different platforms: 1. 0x4: For Intel CPUs 2. 0x80...
Any information that is related to Processor including the design of the Processor can be fetched using CPUID instructions. For example, we can get the following information using CPUID using different leaf values: 1. Processor Vendor name 2. Processor name, Serial number 3. Number of Cores 4. Features supported like AVX512 5. L1, L2 and L3 Cache S...
Nov 9, 2022 · The CPUID field is a combination of the processor family, processor model, and processor stepping reported in a hexadecimal format. The Intel® Processor Identification Utility reports the CPUID information for the tested processor, located under the CPUID DATA tab of the tool.
Feb 24, 2023 · What is CPU-Z and how to use it#cpuz #pc #computer Download CPU-Z:https://www.cpuid.com/softwares/cpu-z.htmlDescription: This video shows a user how to use ...
Feb 11, 2021 · For the most part, CPU-Z is a quick way to look at the finer details of your PC like CPU core clocks and speeds, motherboard BIOS versions and the generation of your PCI-E bus. But it...
- Robert Zak
System Development Kits. Your application is a few minutes away from being able to keep an eye on most PC systems health sensors: voltages, temperatures & fan speeds. View more. CPUID brings you system & hardware benchmark, monitoring, reporting quality softwares for your Windows & Android devices.
CPU-Z for Windows® x86/x64 is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels. Mainboard and chipset. Memory type, size, timings, and module specifications (SPD). Real time measurement of each core's internal frequency, memory frequency.
